18+15y-10
=18-10+15y
=8+15y
∑ from 1 to infinity of 12(3/5)^(i - 1)
Since the common ratio is less than 1, the series is convegent. [i.e. 3/5 < 1]
Sum to infinity of a geometric series is given by a/(1 - r); where a is the first term, and r is the common ratio.
Sum = 12/(1 - 3/5) = 12/(2/5) = 30.
Answer:
Step-by-step explanation:
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Answer:
D) 21
Step-by-step explanation:
The formula for finding the area of a triangle is A = 1/2 B x H. So, A = 1/2 (7)(6).
A = 1/2 (42)
A = 21.
So the area of the shaded region is 21 square units.
